PowerMark is a benchmark produced by Futuremark that simulates different usage scenarios in order to determine battery life. It loops these different scenarios infinitely until the battery hits 15% and then gives us an estimated battery life time. For our testing, we use all four different scenarios. These are video playback, gaming, web browsing and word processing.

The test is ran once with the computer's Power Options set to Balanced. You'll notice our graph has been cleared. PowerMark was updated to the latest version for testing, so we removed the test results created with a past version.

The Acer Aspire S7-191 managed to post the highest battery life score out of any of the systems, past or present, that we have tested. With the extended battery equipped, the S7-191 managed to run for 3:59, an impressive time considering the other systems were just over half of that.